JP2017190442A - Adhesion method, method for producing ink layer-formed body, and ink layer-formed body - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an adhesion method, a method for producing an ink layer-formed body, and an ink layer-formed body suppressing the bleed of an ink layer formed by ultraviolet curable ink and, while making the convenience in the adhesion operation between the body to be adhered and an adhesion body high, capable of suitably performing the adhesion between the body to be adhered and the adhesion body.SOLUTION: Provided is an adhesion method of adhering media 5 and a foil body 11 comprising: an ink layer formation step S10 where ultraviolet curable ink discharged from an ink jet head 20 is impacted on the media 5, the ultraviolet curable ink is irradiated with ultraviolet rays, and curing is caused to form an ink layer 8; a lamination step S11 where the media 5 and the foil 11 are laminated with the ink layer 8 interposed; and an adhesion step S12 where the ink layer 8 is heated, and the ink layer 8 is functioned as an adhesive to adhere the media 5 and the foil body 11.SELECTED DRAWING: Figure 3

Description

  The present invention relates to an adhesion method for bonding an adherend and an adhesive body using ultraviolet curable ink, a method for producing an ink layer formation body, and an ink layer formation body.

  Conventionally, a method of transferring a foil to a recording medium is known (see, for example, Patent Document 1). In this method, a liquid is discharged onto a recording medium, and the discharged liquid is irradiated with an active energy ray and first cured to form an adhesive image having adhesiveness on the recording medium. Then, the foil is transferred to the image of the formed adhesive, and an active energy ray is irradiated from the transferred foil to be second cured to further crosslink the adhesive.

JP 2009-226880 A

  However, in the method of Patent Document 1, since the liquid after the first curing becomes a sticky adhesive, the foil must be immediately transferred to the image of the formed adhesive after the first curing. . In other words, if the image of the formed adhesive is left to stand after the first curing, the activity of the adhesive proceeds and it is easy to crosslink, so it becomes difficult to transfer the foil to the image of the adhesive. . For this reason, it is difficult to perform the process of forming the adhesive and the process of transferring the foil with a long time, and the convenience of the bonding operation is low.

  Further, until the foil is transferred, the adhesive is held in a sticky adhesive state. Therefore, the adhesive spreads on the recording medium, and the adhesive image may be blurred. For this reason, it becomes difficult to make the image after bonding the foil high-definition.

  Furthermore, when a foil having a high shielding property against active energy rays, such as a gold foil, is used as the foil, it is difficult to crosslink the adhesive even if the active energy rays are irradiated from above the transferred foil. For this reason, it is difficult to perform the bonding appropriately.

  Therefore, the present invention suppresses the bleeding of the ink layer formed by the ultraviolet curable ink, makes the bonding work between the adherend and the adherend highly convenient, and allows the adherence between the adherend and the adherend. It is an object to provide an adhesion method and an adherend that can be suitably performed.

  The bonding method of the present invention is a bonding method in which an adherend is bonded to an adherend, and ultraviolet curing ink discharged from an inkjet head is landed on either the adherend or the adherend, and the ultraviolet curing is performed. An ink layer forming step for forming an ink layer by irradiating the ink with ultraviolet rays, a laminating step for laminating the adherend and the adhesive across the ink layer, and heating the ink layer And an adhesion step of causing the ink layer to function as an adhesive and adhering the adherend to the adherend.

  According to this configuration, the ultraviolet curable ink can be cured in the ink layer forming step. At this time, since the ultraviolet curable ink is cured, it does not function as an adhesive and can be handled in a state where the ink layer is cured. For this reason, it is possible to perform the ink layer forming step and the bonding step with a long time, and the bonding work between the adherend and the bonded body can be highly convenient. Further, in the ink layer forming step, since the ink layer can be cured immediately by irradiating the ultraviolet curable ink with ultraviolet rays, the spread of the ink layer can be suppressed and the bleeding of the ink layer can be suppressed. Then, in a state where the adherend and the adherend are stacked with the ink layer sandwiched, the ink layer is heated to soften the ink layer, and the softened ink layer can function as an adhesive. An adhesive body and an adhesive body can be adhere | attached suitably. For this reason, the adhesive body adhere | attached on the to-be-adhered body can be made into a high definition by suppressing the bleeding of the ink layer formed with an ultraviolet curable ink. In the bonding process, the brightness of the bonded body bonded to the adherend can be increased by heating the ink layer while pressing the adhesive layer through the bonded body so that the ink layer becomes smooth.

  The ink layer is preferably formed of the ultraviolet curable ink that is melted by heat after curing, and melts when heated to function as an adhesive.

  According to this configuration, the ink layer can be melted and softened by being heated, so that the ink layer can suitably function as an adhesive. As the ultraviolet curable ink, for example, “PR-100” or “LUS-350 Clear” manufactured by Mimaki Engineering can be used.

  In the ink layer forming step, the ink layer is preferably formed on the adherend, and in the laminating step, the adhesive attached to the release sheet is preferably brought into contact with the ink layer.

  According to this configuration, since the ink layer can be formed on the adherend with high precision by the ink jet head, the adherend adhered to the adherend by the ink layer can be made high definition.

  In the ink layer forming step, the ink layer is formed on the adhesive body adhered to the release sheet, and in the laminating step, the ink layer formed on the adhesive body is brought into contact with the adherend. It is preferable.

  According to this configuration, the ink layer can be formed on the adhesive body. For this reason, for example, an ink layer is formed even when the ink layer is difficult to form with an inkjet head such as an adherend having a curved surface or an adherend having a deep bottom surface. By bonding the adhesive body to the adherend, the adhesive body and the adherend can be suitably bonded.

  Further, in the ink layer forming step, it is preferable to perform overstrike to make the ultraviolet curable ink land on the same landing position a plurality of times with respect to the landing position where the ultraviolet curable ink lands.

  According to this configuration, the ultraviolet curable ink is ejected from the ink jet head to the same landing position a plurality of times, so that the dot diameter of the landed ultraviolet curable ink is set to the normal case where no overstrike is performed (that is, the ink is landed once Can be made larger than the Thereby, since the formation of pinholes in the ink layer can be suppressed, poor adhesion of the adherend bonded to the ink layer can be suppressed, and the quality of the adherend can be improved.

  In the ink layer forming step, it is preferable that the amount of the ultraviolet curable ink is smaller when the overstrike is performed than when the overstrike is not performed.

  According to this configuration, the ink layer can be formed thin. For this reason, even when a force due to rubbing or the like is applied to the ink layer through the adherend, the displacement in the ink layer can be reduced, so that the displacement of the adherend can be reduced, and the adherend is peeled off. Can be suppressed. Therefore, the abrasion resistance (scratch resistance) of the adherend can be improved.

  In addition, in the ink layer forming step, when the overstrike is performed, it is preferable that the amount of the ultraviolet curable ink each time is the same.

  According to this configuration, since the same ink amount can be ejected from the inkjet head and overstrike can be performed, it is not necessary to adjust the ink amount for each ejection. In addition, as a condition for overstrike, for example, a condition in which the ink amount is 50% with respect to the normal ink amount and is overlapped twice at the landing position is preferable.

  Further, in the ink layer forming step, after landing of the ultraviolet curable ink, the ultraviolet curable ink is irradiated with ultraviolet rays to be semi-cured, and after the ink layer is formed, the ink layer is irradiated with ultraviolet rays to completely It is preferable to cure.

  According to this configuration, it is possible to suppress bleeding of the ultraviolet curable ink by semi-curing the ultraviolet curable ink. In addition, after UV-curing ink is semi-cured and until it is completely cured, the edge of UV-curing ink that has landed at the landing position (the boundary between UV-curing ink and the adherend or adhesive that has landed) It becomes gentle (tapered shape). For this reason, the ink layer that has been completely cured can be prevented from being caught on the ink layer even when a force due to rubbing or the like is applied to the ink layer via the adherend. Can be improved. This ink layer forming step is also called glossy printing. In the ink layer forming step, after the landing of the ultraviolet curable ink, the ultraviolet curable ink is delayed by a predetermined time (for example, several seconds), and the ultraviolet curable ink is irradiated with ultraviolet rays to be semi-cured.

  The ultraviolet curable ink preferably has a glass transition temperature of 25 ° C. or higher and lower than the heating temperature in the bonding step.

  According to this configuration, since the glass transition temperature of the ultraviolet curable ink is lower than the heating temperature, the ultraviolet curable ink can be suitably softened by heating, and the ink layer can function appropriately as an adhesive. Further, since the glass transition temperature of the ultraviolet curable ink is 25 ° C. or higher, the cured state of the ultraviolet curable ink can be suitably maintained in a state lower than 25 ° C., for example, at a normal temperature, and is scratch resistant. Can be improved. The glass transition temperature may be 25 ° C. or higher, preferably 40 ° C. or higher, and more preferably 60 ° C. or higher. In this case, for example, even when heat is applied to the ink layer from the outside, the cured state of the ultraviolet curable ink can be suitably maintained. For example, when the ink layer is formed on the cover of the portable terminal, the cured state of the ultraviolet curable ink can be suitably maintained even when the ink layer is heated by heat radiation from the portable terminal. As such an ultraviolet curable ink, for example, “LUS-350 Clear” manufactured by Mimaki Engineering can be used. By using this ink, the heating temperature in the bonding step can be set to about 120 ° C. .

  According to another bonding method of the present invention, in the bonding method in which the adherend and the bonded body are bonded, the ultraviolet curable ink discharged from the inkjet head is landed on either the bonded body or the bonded body, An ink layer forming step of forming an ink layer by irradiating the ultraviolet curable ink with ultraviolet rays and curing; a solvent applying step of applying a solvent to the ink layer and causing the ink layer to function as an adhesive; It is characterized by comprising a laminating step for laminating the adherend and the adhesive with an ink layer interposed therebetween, and an adhesion step for adhering the adherend and the adhesive.

  According to this configuration, the ultraviolet curable ink can be cured in the ink layer forming step. At this time, since the ultraviolet curable ink is cured, it does not function as an adhesive and can be handled in a state where the ink layer is cured. For this reason, it is possible to perform the ink layer forming step and the bonding step with a long time, and the bonding work between the adherend and the bonded body can be highly convenient. Further, in the ink layer forming step, since the ink layer can be cured immediately by irradiating the ultraviolet curable ink with ultraviolet rays, the spread of the ink layer can be suppressed and the bleeding of the ink layer can be suppressed. Then, by applying a solvent to the ink layer, the ink layer is dissolved, the dissolved ink layer functions as an adhesive, and the adherend and the adhesive are stacked with the ink layer interposed therebetween, An adhesive body can be suitably bonded. For this reason, the adhesive body adhere | attached on the to-be-adhered body can be made into a high definition by suppressing the bleeding of the ink layer formed with an ultraviolet curable ink. Further, since there is no need to heat the ink layer, the adherend and the bonded body can be suitably bonded without using a heating device.

  The ink layer is preferably formed of the ultraviolet curable ink having low solvent resistance after curing, and dissolves when the solvent is applied to function as an adhesive.

  According to this structure, an ink layer can be suitably functioned as an adhesive agent by dissolving an ink layer by applying a solvent. For example, “LUS-350 Clear” manufactured by Mimaki Engineering can be used as such an ultraviolet curable ink.

  The ultraviolet curable ink preferably contains a thermoplastic resin.

  According to this configuration, since the ultraviolet curable ink contains the thermoplastic resin, the ink layer can be suitably dissolved by the solvent, and the ink layer can function appropriately as an adhesive.

  In the method for producing an ink layer formed body of the present invention, an ultraviolet curable ink that functions as an adhesive by heating is ejected from an inkjet head and landed on a substrate, and the ultraviolet curable ink is irradiated with ultraviolet rays and cured. Then, an ink layer is formed on the substrate.

  In addition, the ink layer forming body of the present invention is characterized in that an ink layer obtained by curing an ultraviolet curable ink that functions as an adhesive by heating is formed on a substrate.

  According to this configuration, since the ultraviolet curable ink is cured and does not function as an adhesive, the ink layer formed body in a state where the ink layer is cured can be easily handled. Can be expensive. Further, by heating the ink layer, the ink layer can easily function as an adhesive. In addition, as a base | substrate, the to-be-adhered body to which an adhesive body adhere | attaches may be sufficient, and the adhesive body adhere | attached on an to-be-adhered body may be sufficient.

  In another method for producing an ink layer formed body of the present invention, an ultraviolet curable ink that functions as an adhesive by applying a solvent is ejected from an inkjet head to land on a substrate, and the ultraviolet curable ink is irradiated with ultraviolet rays. And an ink layer is formed on the substrate by curing.

  In addition, the ink layer formed body of the present invention is characterized in that an ink layer obtained by curing an ultraviolet curable ink functioning as an adhesive by applying a solvent is formed on a substrate.

  According to this configuration, since the ultraviolet curable ink is cured and does not function as an adhesive, the ink layer formed body in a state where the ink layer is cured can be easily handled. Can be expensive. Further, by applying a solvent to the ink layer, the ink layer can easily function as an adhesive. In addition, as a base | substrate, the to-be-adhered body to which an adhesive body adhere | attaches may be sufficient, and the adhesive body adhere | attached on an to-be-adhered body may be sufficient.

FIG. 1 is a cross-sectional view showing an adhesive bonded by the bonding method according to the first embodiment. FIG. 2 is a cross-sectional view illustrating an ink layer forming body and a vapor deposition film used in the bonding method according to the first embodiment. FIG. 3 is an explanatory view showing the bonding method according to the first embodiment. FIG. 4 is a cross-sectional view illustrating another example of the adhesive body according to the first embodiment. FIG. 5 is a cross-sectional view illustrating another example of the adhesive body according to the first embodiment. FIG. 6 is an explanatory view showing the bonding method according to the second embodiment. FIG. 7 is an explanatory view showing the bonding method according to the third embodiment. FIG. 8 is an explanatory diagram illustrating an ink layer forming body according to the fourth embodiment. FIG. 9 is an explanatory diagram regarding an ink layer forming step of the bonding method according to the fifth embodiment. FIG. 10 is an explanatory diagram regarding an ink layer forming step of the bonding method according to the sixth embodiment. FIG. 11 is an explanatory view showing a bonding method according to the seventh embodiment.

  Embodiments according to the present invention will be described below in detail with reference to the drawings. In addition, this invention is not limited by this embodiment. In addition, constituent elements in the following embodiments include those that can be easily replaced by those skilled in the art or those that are substantially the same. Furthermore, the constituent elements described below can be appropriately combined, and when there are a plurality of embodiments, the embodiments can be combined.

[Embodiment 1]
The bonding method according to the first embodiment is a method of bonding the medium 5 as the adherend and the foil body 11 as the bonded body via the ink layer 8. First, with reference to FIG. 1, the bonded product 1 produced by the bonding method will be described.

  FIG. 1 is a cross-sectional view showing an adhesive bonded by the bonding method according to the first embodiment. As shown in FIG. 1, the adhesive 1 includes a medium 5, a foil body 11, and an ink layer 8.

  As the material, a material such as resin, metal, cloth, or leather material can be applied to the medium 5, and any material can be applied as long as it can be bonded. Further, the media 5 has a surface to be bonded to which the foil body 11 is bonded. The surface to be bonded may be a flat surface or a curved surface as a shape, and can be applied to any shape as long as it can be bonded.

  The ink layer 8 is formed using an ultraviolet curable ink. The ink layer 8 is formed on the adherend surface of the medium 5 and is formed so as to rise from the adherend surface. The ultraviolet curable ink used for the ink layer 8 is an ink that is completely cured when irradiated with ultraviolet rays, and functions as an adhesive by being melted and softened by being heated in a completely cured state. Ink. Note that complete curing means that the ultraviolet curable ink is crosslinked by being irradiated with ultraviolet rays. As the ultraviolet curable ink, for example, “PR-100” or “LUS-350 Clear” manufactured by Mimaki Engineering is used.

  The foil body 11 is, for example, a vapor deposition film formed using metal or the like, and is formed as a decorative layer for decorating the media 5.

  The adhesive 1 configured as described above is a decorative foil body that is bonded to the medium 5 via the ink layer 8 by forming the ink layer 8 so as to rise on the surface to be bonded of the medium 5. 11 is raised and formed.

  Next, with reference to FIG. 2, the ink layer formation body 9 used for the adhesion | attachment method which adhere | attaches the medium 5 and the foil body 11 of the adhesive material 1 shown in FIG. FIG. 2 is a cross-sectional view illustrating an ink layer forming body and a vapor deposition film used in the bonding method according to the first embodiment.

  As shown in FIG. 2, the ink layer forming body 9 includes a medium (adhered body) 5 serving as a base and an ink layer 8. The ink layer forming body 9 forms the ink layer 8 on the medium 5 by landing the ultraviolet curable ink on the medium 5 from the ink jet head and completely irradiating the ultraviolet curable ink with ultraviolet rays. The ink layer forming body 9 is easy to handle because the ink layer 8 is in a completely cured state before bonding to the vapor deposition film 10 and does not function as an adhesive. That is, the ink layer forming body 9 can be stored in a state where the ink layer 8 is completely cured.

  The vapor deposition film 10 has a peeling film (peeling sheet) 12 and a foil body 11 which is a vapor deposition film. The peelable film 12 is attached so that the foil body 11 bonded to the ink layer 8 can be peeled off. That is, the adhesive force between the peeling film 12 and the foil body 11 is lower than the adhesive force between the foil body 11 and the ink layer 8. For this reason, if the vapor deposition film 10 is peeled off while the foil body 11 of the vapor deposition film 10 is adhered to the ink layer 8, the foil body 11 adhered to the ink layer 8 is peeled off from the release film 12. On the other hand, the foil body 11 that is not bonded to the ink layer 8 maintains the state of being attached to the release film 12.

  Next, with reference to FIG. 3, the adhesion method of the media 5 and the foil body 11 which concern on Embodiment 1 is demonstrated. FIG. 3 is an explanatory view showing the bonding method according to the first embodiment. As shown in FIG. 3, in the bonding method of the first embodiment, the ink layer forming step S10, the laminating step S11, the bonding step S12, and the peeling step S13 are sequentially performed.

  As shown in FIG. 3, in the ink layer forming step S <b> 10, the ultraviolet curable ink is ejected from the inkjet head 20, and the ejected ultraviolet curable ink is landed on the medium 5. In the ink layer forming step S10, printing is performed using, for example, “UJF-3042” or “UJF-6042” manufactured by Mimaki Engineering as a printing apparatus having the inkjet head 20. Further, in the ink layer forming step S10, the ink layer 20 is moved by moving the ultraviolet irradiation device 21 in the moving direction of the inkjet head 20, and irradiating the ultraviolet curable ink with ultraviolet rays to be cured. 8 is formed. In this way, in the ink layer forming step S10, after the ultraviolet curable ink is discharged, it can be cured by irradiating with ultraviolet rays, so that an ink-jet printed image of the ink layer 8 can be formed with high definition. In addition, in the ink layer forming step S <b> 10, the ink layer 8 can be raised and formed on the adherend surface of the medium 5. Then, the medium 5 on which the ink layer 8 is formed in the ink layer forming step S <b> 10 is handled as the ink layer forming body 9.

  As described above, the ink layer forming step S10 is a manufacturing method of the ink layer forming body 9 shown in FIG. 2, and the ink layer forming body 9 in which the ink layer 8 is completely cured can be stored as it is. Alternatively, it is handled in a laminating step S11 described later.

  Subsequently, in the stacking step S11, the ink layer 8 of the ink layer forming body 9 and the foil body 11 of the vapor deposition film 10 are overlapped to face each other, so that the media 5 and the foil body 11 are sandwiched between the ink layers 8. Laminate.

  In the bonding step S12, the ink layer 8 is heated and melted by the heating member 25 from the outside of the vapor deposition film 10 (on the peeling film 12 side), thereby causing the ink layer 8 to function as an adhesive. And the foil body 11 are bonded. Specifically, in the bonding step S12, when the ink layer 8 is heated, the heating member 25 is pressed against the medium 5 via the vapor deposition film 10 and the ink layer 8, thereby causing the medium 5 and the foil body 11 to be pressure-bonded. ing. At this time, in the bonding step S12, the heating member 25 is pressed toward the medium 5 so that the ink layer 8 becomes flat. Since the foil body 11 is adhered to the flat ink layer 8 by flattening the ink layer 8, the brightness of the foil body 11 can be enhanced.

  The heating member 25 used in the bonding step S12 may be a heating member such as an iron having a flat heating surface, or may be a cylindrical heating roller having an outer peripheral surface serving as a heating surface. It is not limited. In addition, in the bonding step S12, the vapor deposition film 10 is pressed against the medium 5, but the medium 5 may be pressed against the vapor deposition film 10 and is not particularly limited. Furthermore, in the bonding step S12, if the medium 5 and the foil body 11 can be pressure-bonded, for example, the medium 5 and the foil body 11 are accommodated in a vacuum pack, and the inside of the vacuum pack is evacuated to atmospheric pressure. Thus, the medium 5 and the foil body 11 may be pressure-bonded.

  Subsequently, in the peeling step S <b> 13, the deposited film 10 is peeled off from the medium 5. The vapor deposition film 10 maintains the state where the foil body 11 bonded to the ink layer 8 is peeled off from the release film 12 and the foil body 11 not bonded to the ink layer 8 is attached to the release film 12. As described above, the adhesive 1 shown in FIG. 1 is formed by the bonding method shown in FIG.

  As described above, according to the first embodiment, the ultraviolet curable ink can be cured in the ink layer forming step S10. At this time, since the ultraviolet curable ink is cured, it does not function as an adhesive and can be handled in a state where the ink layer 8 is cured. For this reason, it becomes possible to perform ink layer formation process S10 and adhesion process S12 at intervals, and the adhesion work of media 5 and foil body 11 can be made highly convenient. Further, in the ink layer forming step S10, by irradiating the ultraviolet curable ink with ultraviolet rays, the ink layer 8 can be cured immediately, so that the spreading of the ink layer 8 can be suppressed and bleeding of the ink layer 8 can be suppressed. be able to. And in the state which laminated | stacked the medium 5 and the foil body 11 on both sides of the ink layer 8, the ink layer 8 can be functioned as an adhesive agent by heating the ink layer 8, The media 5 and the foil body 11 and Can be suitably bonded. For this reason, by suppressing the bleeding of the ink layer 8 formed of the ultraviolet curable ink, the foil body 11 adhered to the medium 5 can be made high definition.

  In addition, according to the first embodiment, the ink layer 8 can be formed on the medium 5 with high definition by the ink jet head 20, so that the foil body 11 bonded to the medium 5 with the ink layer 8 can be formed with high definition. can do.

  In addition, in Embodiment 1, the vapor deposition film 10 which adhered the foil body 11 to the peeling film 12 was used, but it replaces with the peeling film 12, and may use a silicon sheet with high heat conductivity. By using a silicon sheet having a high thermal conductivity, the ink layer 8 can be suitably heated by the heating member 25.

  In the first embodiment, the foil body 11 is bonded for decoration of the medium 5. However, the foil body 11 may be bonded to the medium 5 in order to form a circuit pattern on the medium 5. That is, a circuit board is applied as the medium 5, a highly conductive material is applied as the foil body 11, and an image of the circuit pattern is formed as the ink layer 8, thereby forming a circuit board on which the circuit pattern is formed. May be.

  In the first embodiment, the line segment of the image of the ink layer 8 formed in the ink layer formation step S10 is thin in consideration of the collapse of the ink layer 8 due to the pressure bonding between the medium 5 and the foil body 11 in the adhesion step S12. The ink layer 8 may be formed as described above.

  In Embodiment 1, a vapor deposition film is applied as the foil body 11, but a gold foil 41 may be applied as the foil body 11. Here, when applying the gold foil 41, for example, the gold foil film 40 shown in FIG. FIG. 4 is a cross-sectional view illustrating another example of the adhesive body according to the first embodiment.

  Specifically, when the gold foil 41 is used as the foil body 11, if the gold foil 41 is directly bonded to the ink layer 8, the recovery and handling of the gold foil 41 that is not bonded to the ink layer 8 becomes complicated. For this reason, the low adhesive layer 15 is provided on the release film 12, and the gold foil 41 is adhered to the low adhesive layer 15 to form the gold foil film 40. At this time, the low adhesive layer 15 has an adhesive force lower than the adhesive force between the gold foil 41 and the ink layer 8. By using such a gold foil film 40, the gold foil 41 can be suitably bonded to the ink layer 8, and the gold foil 41 not bonded to the ink layer 8 can also be attached to the release film 12. 41 can be easily collected and handled.

  Moreover, in Embodiment 1, the vapor deposition film 10 which has the foil body 11 and the peeling film 12 was applied, but as shown in FIG. 5, the adhesion | attachment which has the anchor effect which improves the adhesiveness with the ink layer 8 to the foil body 11 is shown. An agent layer 16 may be further provided. FIG. 5 is a cross-sectional view illustrating another example of the adhesive body according to the first embodiment.

  Specifically, the vapor deposition film 10 of FIG. 5 is provided with an adhesive layer 16 on the opposite side of the release film 12 with the foil body 11 interposed therebetween. The adhesive layer 16 is formed by using, for example, an adhesive wax. The temperature at which the adhesive layer 16 functions as an adhesive is higher than the melting temperature of the ink layer 8 that is melted by the heating member 25 in the bonding step S12. That is, when the ink layer 8 is heated by the heating member 25 in the bonding step S13, the ink layer 8 functions as an adhesive, while a part of the adhesive layer 16 functions slightly as an adhesive, or is bonded. The agent layer 16 does not function as an adhesive. For this reason, in the adhesion step S13, the adhesive layer 16 and the ink layer 8 are more firmly bonded, while the adhesion between the adhesive layer 16 and the medium 5 is suppressed. From the above, the adhesion between the media 5 and the foil body 11 can be made stronger by using the vapor deposition film 10 shown in FIG.

[Embodiment 2]
Next, the bonding method according to the second embodiment will be described with reference to FIG. In the second embodiment, parts that are different from the first embodiment will be described in order to avoid redundant descriptions, and parts that are the same as those in the first embodiment will be described with the same reference numerals. FIG. 6 is an explanatory view showing the bonding method according to the second embodiment.

  In the adhesion method of the second embodiment, the ink layer 8 is formed on the vapor deposition film 10. As shown in FIG. 6, in the bonding method of the second embodiment, the ink layer forming step S20, the laminating step S21, the bonding step S22, and the peeling step S23 are sequentially performed.

  As shown in FIG. 6, in the ink layer forming step S <b> 20, ultraviolet curable ink is ejected from the inkjet head 20, and the ejected ultraviolet curable ink is landed on the foil body 11 of the vapor deposition film 10. Further, in the ink layer forming step S20, similarly to the ink layer forming step S10 of the first embodiment, the ultraviolet irradiation device 21 is moved behind the inkjet head 20 to move the ultraviolet curable ink from the ultraviolet irradiation device 21. The ink layer 8 is formed by irradiating the film with ultraviolet rays and curing it. The vapor deposition film 10 on which the ink layer 8 is formed in the ink layer forming step S20 is handled as the ink layer forming body 9.

  As described above, the ink layer forming step S20 is a manufacturing method of the ink layer forming body 9 shown in FIG. 6 as in the ink layer forming step S10 of the first embodiment, and is used for the ink layer forming body 9. As the substrate, a foil body 11 serving as an adhesive is applied. The ink layer forming body 9 is also stored as it is, or is handled in a laminating step S21 described later.

  In the laminating step S21, the ink layer 8 formed on the vapor deposition film 10 and the medium 5 are overlapped with each other so that the medium 5 and the foil body 11 are stacked with the ink layer 8 interposed therebetween.

  Subsequently, an adhesion step S22 and a peeling step S23 are sequentially performed. Note that the bonding step S22 and the peeling step S23 are the same as the bonding step S12 and the peeling step S13 of the first embodiment, and a description thereof will be omitted.

  As described above, according to the second embodiment, the ink layer 8 can be formed on the foil body 11 of the vapor deposition film 10. Therefore, the medium 5 having a shape in which it is difficult to form the ink layer 8 by the ink jet head 20 such that the adherend surface of the medium 5 is, for example, a curved surface or the bottom surface of a deep container. In addition, by adhering the vapor deposition film 10 on which the ink layer 8 is formed to the medium 5, the medium 5 and the foil body 11 can be suitably bonded.

[Embodiment 3]
Next, the bonding method according to the third embodiment will be described with reference to FIG. In the third embodiment, parts that are different from those in the first and second embodiments will be described in order to avoid redundant descriptions, and parts that have the same configuration as those in the first and second embodiments will be described with the same reference numerals. FIG. 7 is an explanatory view showing the bonding method according to the third embodiment.

  In the bonding method of the third embodiment, a process ink layer 29 is provided instead of the foil body 11 of the vapor deposition film 10 of the second embodiment. As shown in FIG. 7, in the bonding method of Embodiment 3, the process ink layer forming step S30, the ink layer forming step S31, the laminating step S32, the bonding step S33, and the peeling step S34 are sequentially performed.

  As shown in FIG. 7, in the process ink layer forming step S <b> 30, the process ink is ejected from the inkjet head 28 and the ejected process ink is landed on the release film 12. Thereby, in the process ink layer forming step S30, the process ink layer 29 as a color image is formed (printed) on the release film 12.

  In the ink layer forming step S31, ultraviolet curable ink is discharged from the inkjet head 20, and the discharged ultraviolet curable ink is landed on the process ink layer 29 formed on the release film 12. Further, in the ink layer forming step S31, similarly to the ink layer forming step S10 of the first embodiment, the ultraviolet irradiation device 21 is moved in the moving direction of the inkjet head 20, and the ultraviolet curable ink is transferred from the ultraviolet irradiation device 21. The ink layer 8 is formed by irradiating the film with ultraviolet rays and curing it. At this time, the process ink layer 29 and the ink layer 8 are drawn so as to be the same image, and the process ink layer 29 and the ink layer 8 that are the same image are formed so as to overlap each other. . The color film composed of the process ink layer 29, the ink layer 8, and the release film 12 is handled as the ink layer forming body 9.

  In the stacking step S32, the medium 5 and the process ink layer 29 are stacked with the ink layer 8 interposed therebetween by overlapping the ink layer 8 formed on the color film and the medium 5 so as to face each other.

  Subsequently, an adhesion step S33 and a peeling step S34 are sequentially performed. The bonding step S33 and the peeling step S34 are the same as the bonding step S12 and the peeling step S13 of the first embodiment except that the foil body 11 is replaced with the process ink layer 29, and thus description thereof is omitted.

  As described above, according to the third embodiment, the process ink layer 29 can be suitably bonded to the medium 5 through the ink layer 8 instead of the foil body 11.

  In the third embodiment, the process ink layer 29 is formed on the release film 12 in the process ink layer forming step S30. However, the overcoat layer forming step may be performed before the process ink layer forming step S30. Specifically, in the overcoat layer forming step, the overcoat ink is discharged from the inkjet head 28 and the discharged overcoat ink is landed on the release film 12. Thus, in the overcoat layer forming step, an overcoat layer for protecting the process ink layer 29 is formed on the release film 12. Thereafter, in the process ink layer forming step S30, the process ink is ejected from the inkjet head 28, and the ejected process ink is landed on the overcoat layer formed on the release film 12. The overcoat layer is also formed so as to overlap at the same position as the process ink layer 29 and the ink layer 8. According to this configuration, since the overcoat layer can be formed on the surface of the process ink layer 29, the process ink layer 29 can be protected and the scratch resistance can be improved.

[Embodiment 4]
Next, an adhesion method according to Embodiment 4 will be described with reference to FIG. In the fourth embodiment, parts that are different from those in the first to third embodiments will be described in order to avoid duplicate descriptions, and parts that have the same configuration as those in the first to third embodiments will be described with the same reference numerals. FIG. 8 is an explanatory diagram illustrating an ink layer forming body according to the fourth embodiment.

  In the fourth embodiment, the ink layer forming body 30 includes a box body 31 as a base and an ink layer 8 formed on the box body 31. A part of the box 31 is an adherend as an adherend, and the other part is an adherent as an adherend. In other words, the box body 31 is a combination of the adherend and the bonded body. The ink layer forming body 30 forms the ink layer 8 on the box 31 by landing the ultraviolet curable ink from the inkjet head on the adhesive portion of the box 31 and irradiating the ultraviolet curable ink with ultraviolet rays to completely cure the ink. ing. The ink layer forming body 30 is easy to handle because the ink layer 8 is in a completely cured state before bonding to the adherend and does not function as an adhesive. That is, the ink layer forming body 30 can be stored in a state where the ink layer 8 is completely cured.

  In the ink layer forming body 30, when the box body 31 is assembled, the bonded portion and the bonding portion are overlapped with the ink layer 8 interposed therebetween, and in this state, the ink layer 8 is heated and melted. Thus, the ink layer 8 functions as an adhesive, and the bonded portion and the bonded portion are bonded by the ink layer 6.

  As described above, according to the fourth embodiment, since the ink layer 8 is completely cured, the box 31 provided with the ink layer 8 can be stored for a long period of time. Further, at the time of assembling the box body 31, the ink layer 8 can be caused to function as an adhesive by heating the ink layer 8. Can be suitably bonded.

[Embodiment 5]
Next, an adhesion method according to Embodiment 5 will be described with reference to FIG. In the fifth embodiment, in order to avoid redundant description, portions different from the first to fourth embodiments will be described, and portions having the same configurations as those of the first to fourth embodiments will be described with the same reference numerals. FIG. 9 is an explanatory diagram regarding an ink layer forming step of the bonding method according to the fifth embodiment.

  In the adhesion method according to the fifth embodiment, in the ink layer forming step S10 according to the first embodiment, overstrike is performed in which the ultraviolet curable ink is landed on the same landing position P a plurality of times at the landing position P where the ultraviolet curable ink lands. The ink layer 8 is formed. Also in the ink layer forming step S10 of the fifth embodiment, printing is performed using, for example, “UJF-3042” or “UJF-6042” manufactured by Mimaki Engineering as a printing apparatus having the inkjet head 20, and is 1200 dpi × 1440 dpi. The printing is performed with 8 passes at a resolution of. Note that the number of passes is not particularly limited, and may be, for example, 4 passes. When overprinting is performed in the ink layer forming step S10, the amount of the ultraviolet curable ink ejected at each time is the normal amount when the overstrike is not performed (that is, the ultraviolet curable ink is applied only once to the landing position P). In the case of discharging a small amount). In the overstrike, the amount of the ultraviolet curable ink is set to the same amount each time. Specifically, in the fifth embodiment, in the ink layer forming step S10, when performing overstrike, the ultraviolet curable ink is ejected twice to the same landing position P, and the ink amount of the first ultraviolet curable ink, The amount of the second UV curable ink is the same amount. The first and second ink amounts are about 50% of the amount of ink ejected during normal operation (during normal printing). For this reason, in the ink layer forming step S10 of the fifth embodiment, the ultraviolet curable ink is ejected from the inkjet head 20 to the landing position P so that the ink amount becomes 100% by performing the overstrike twice. . That is, in the ink layer forming step S10, the ink amount for each time is set to 50%, and printing is repeated twice under the printing conditions based on the image data of the ink layer 8 to be formed.

  Here, the ultraviolet curable ink used in Embodiment 5 will be described. As the ultraviolet curable ink, an ink whose glass transition temperature Tg is lower than the heating temperature heated in the bonding step S12 and becomes 25 ° C. or more is used. The glass transition temperature Tg may be 25 ° C. or higher, preferably 40 ° C. or higher, and more preferably 60 ° C. or higher. When the glass transition temperature Tg is lower than the heating temperature, the ink layer 8 is melted and softened by heating the ink layer 8 at the heating temperature in the bonding step S12, and the softened ink layer 8 functions as an adhesive. At this time, the heating temperature is, for example, 100 ° C. or higher and 150 ° C. or lower, and is about 120 ° C. as an example. This heating temperature is appropriately changed according to the medium 5 to be used. On the other hand, when the glass transition temperature Tg is 25 ° C. or higher, the ultraviolet curable ink is maintained in a cured state without being softened in the ink layer 8 in a state lower than 25 ° C., for example, at a normal temperature. Softening of the ink layer 8 can be suppressed. Further, when the glass transition temperature Tg is 40 ° C. or higher, and further 60 ° C. or higher, the cured state of the ultraviolet curable ink is suitable even when heat is applied to the ink layer 8 from the outside, for example. Can be maintained. For example, when the ink layer is formed on the cover of the mobile terminal, the ink layer 8 does not soften even when the ink layer 8 is heated by heat radiation from the mobile terminal, and the cured state of the ultraviolet curable ink is preferable. Thus, the softening of the ink layer 8 can be suppressed. Specifically, as such an ultraviolet curable ink, for example, “LUS-350 Clear” manufactured by Mimaki Engineering is used.

  As described above, according to the fifth embodiment, when the ultraviolet curable ink is ejected from the inkjet head 20 to the same landing position P several times, the dot diameter of the landed ultraviolet curable ink is not overprinted. It can be made larger than Thereby, since the formation of pinholes in the ink layer 8 can be suppressed, adhesion failure of the foil body 11 bonded to the ink layer 8 can be suppressed, and the quality of the transferred image of the foil body 11 can be improved. .

  Further, according to the fifth embodiment, when performing overstrike, the ink layer 8 can be formed thin by reducing the amount of the ultraviolet curable ink ejected at each time. For this reason, even when a force due to rubbing or the like is applied to the ink layer 8 via the foil body 11, the displacement in the ink layer 8 can be reduced, so that the displacement of the foil body 11 can also be reduced, and the foil body 11. Can be prevented. Therefore, the scratch resistance of the foil body 11 can be improved.

  Further, according to the fifth embodiment, the amount of the ultraviolet curable ink ejected from the inkjet head 20 at each time can be made the same ink amount in the overstrike, so it is necessary to adjust the ink amount for each ejection. There is no.

  In addition, according to the fifth embodiment, since the glass transition temperature Tg of the ultraviolet curable ink is lower than the heating temperature, the ultraviolet curable ink can be suitably softened by heating in the bonding step S12, and the ink layer 8 is bonded to the adhesive. Can function properly. Moreover, since the glass transition temperature Tg of the ultraviolet curable ink is 25 ° C. or higher, the cured state of the ultraviolet curable ink can be suitably maintained, and the scratch resistance of the foil body 11 can be improved. In addition, you may apply the ultraviolet curable ink of Embodiment 5 to other embodiment.

  In the fifth embodiment, in the ink layer forming step S10, two overstrikes are performed and the ink amount of each time is set to about 50%. However, the overstrike conditions are not particularly limited. When the ink layer 8 is formed on the surface to be bonded of the medium 5 so as to be formed, the number of overstrikes may be increased or the ink amount may be increased each time. On the other hand, when the ink layer 8 is made thinner, for example, the number of overstrikes may be three, the amount of ink at each time may be 30%, and the amount of ink may be 90%.

[Embodiment 6]
Next, an adhesion method according to Embodiment 6 will be described with reference to FIG. In the sixth embodiment as well, parts that are different from the first to fifth embodiments will be described in order to avoid duplicate descriptions, and parts that have the same configuration as those of the first to fifth embodiments will be described with the same reference numerals. FIG. 10 is an explanatory diagram regarding an ink layer forming step of the bonding method according to the sixth embodiment.

  In the adhesion method of the fifth embodiment, after the ink layer 8 is formed in the ink layer forming step S10 of the first embodiment, after the ultraviolet curable ink is semi-cured (temporarily cured) while being ejected from the inkjet head 20, the ink layer 8 is formed. Is completely cured (mainly cured). That is, as shown in FIG. 10, the ink layer forming step S <b> 10 includes a pre-step S <b> 10 a for semi-curing the ultraviolet curable ink and a post-step S <b> 10 b for completely curing the ink layer 8. This ink layer forming step S10 is also referred to as glossy printing.

  In the pre-process S <b> 10 a, the ultraviolet curable ink is discharged from the inkjet head 20, and the discharged ultraviolet curable ink is landed on the medium 5. Further, in the previous step S10a, the ink layer 8 is moved backward in the moving direction of the inkjet head 20, the ultraviolet irradiation device 21a is moved, and the ultraviolet curable ink is irradiated with ultraviolet rays from the ultraviolet irradiation device 21a to be semi-cured. Form. In this way, in the pre-process S10a, after the ultraviolet curable ink is discharged, it can be semi-cured by irradiating the ultraviolet ray. Can be formed. On the other hand, since the ultraviolet curable ink is in a semi-cured state, the edge portion of the ultraviolet curable ink that has landed on the medium 5 (the boundary portion between the ultraviolet curable ink and the landed medium 5) becomes gentle.

  In the pre-process S10a, after landing of the ultraviolet curable ink, the ultraviolet curable ink is delayed by a predetermined time (for example, several seconds), and the ultraviolet curable ink is irradiated with ultraviolet rays to be semi-cured.

  In the post-process S10b, the ultraviolet ray irradiation device 21b is moved with respect to the formed ink layer 8, and the ultraviolet ray curable ink is irradiated with ultraviolet rays from the ultraviolet ray irradiation device 21b, whereby the ink layer 8 is completely cured.

  As described above, according to the sixth embodiment, it is possible to suppress bleeding of the ultraviolet curable ink by semi-curing the ultraviolet curable ink. Further, the edge portion of the ultraviolet curable ink that has landed on the medium 5 becomes gentle during the time from the semi-curing of the ultraviolet curable ink to the complete curing. For this reason, since the ink layer 8 after complete curing can be prevented from being caught on the ink layer 8 even when a force by rubbing or the like is applied to the ink layer 8 via the foil body 11, the foil body 11. It is possible to improve the scratch resistance.

[Embodiment 7]
Next, the bonding method according to the seventh embodiment will be described with reference to FIG. In the seventh embodiment, parts that are different from those in the first to sixth embodiments will be described in order to avoid redundant descriptions, and parts that have the same configuration as those in the first to seventh embodiments will be described with the same reference numerals. FIG. 11 is an explanatory view showing a bonding method according to the seventh embodiment.

  In the bonding method according to the first embodiment, the ink layer 8 is heated to soften the ink layer 8, and the softened ink layer 8 functions as an adhesive. In the bonding method of the seventh embodiment, the ink layer 8 is dissolved by applying the solvent 45 to the ink layer 8, and the dissolved ink layer 8 functions as an adhesive.

  In the bonding method of the seventh embodiment, as shown in FIG. 11, the ink layer forming step S40, the solvent applying step S41, the laminating step S42, the bonding step S43, and the peeling step S44 are sequentially performed.

  Since the ink layer forming step S40 is the same as the ink layer forming step S10 of the first embodiment, the description thereof is omitted. In the ink layer forming step S40 of the seventh embodiment, printing is performed using, for example, “UJF-3042” or “UJF-6042” manufactured by Mimaki Engineering as the printing apparatus having the inkjet head 20, and 1200 dpi. Printing is performed in 8 passes at a resolution of × 1440 dpi. Here, the ultraviolet curable ink used in Embodiment 7 is an ink that is completely cured when irradiated with ultraviolet rays, and is bonded by being dissolved by being applied with the solvent 45 in a completely cured state. The ink functions as an agent. This ultraviolet curable ink contains a thermoplastic resin, and the thermoplastic resin can be dissolved by the solvent 45. As such an ultraviolet curable ink, for example, “LUS-350 Clear” manufactured by Mimaki Engineering is used.

  In the solvent application step S41, the solvent 45 is applied to the surface of the ink layer 8 formed on the medium 5. In the solvent application step S41, when the solvent 45 is applied to the surface of the ink layer 8, the ink layer 8 functions as an adhesive by dissolving the portion of the ink layer 8 where the solvent 45 is applied.

  Subsequently, in the stacking step S42, the ink layer 8 of the ink layer forming body 9 and the foil body 11 of the vapor deposition film 10 are overlapped to face each other, so that the media 5 and the foil body 11 are sandwiched between the ink layers 8. Laminate.

  In the bonding step S <b> 43, the ink layer forming body 9 and the vapor deposition film 10 are pressure-bonded to bond the media 5 and the foil body 11 with the ink layer 8. At this time, unlike the other embodiments, it is not necessary to heat the ink layer 8, and thus it is not necessary to use the heating member 25.

  Subsequently, in the peeling step S <b> 44, the vapor deposition film 10 is peeled off from the medium 5. The vapor deposition film 10 maintains the state where the foil body 11 bonded to the ink layer 8 is peeled off from the release film 12 and the foil body 11 not bonded to the ink layer 8 is attached to the release film 12. As described above, the adhesive 1 shown in FIG. 1 is formed by the bonding method shown in FIG.

  As described above, according to the seventh embodiment, the ultraviolet curable ink can be cured in the ink layer forming step S40. At this time, since the ultraviolet curable ink is cured, it does not function as an adhesive and can be handled in a state where the ink layer 8 is cured. For this reason, it becomes possible to perform ink layer formation process S10 and adhesion process S12 at intervals, and the adhesion work of media 5 and foil body 11 can be made highly convenient. Further, in the ink layer forming step S10, by irradiating the ultraviolet curable ink with ultraviolet rays, the ink layer 8 can be cured immediately, so that the spreading of the ink layer 8 can be suppressed and bleeding of the ink layer 8 can be suppressed. be able to. Then, by applying a solvent to the ink layer 8, the ink layer 8 is dissolved, the dissolved ink layer 8 functions as an adhesive, and the media 5 and the foil body 11 are stacked with the ink layer 8 interposed therebetween. The media 5 and the foil body 11 can be suitably bonded. For this reason, by suppressing the bleeding of the ink layer 8 formed of the ultraviolet curable ink, the foil body 11 adhered to the medium 5 can be made high definition. Further, since there is no need to heat the ink layer 8, the media 5 and the foil body 11 can be suitably bonded without using the heating member 25.

  In the first to seventh embodiments, a coating film covering the foil body 11 may be further formed in order to further improve the scratch resistance. In this case, a coating film may be formed on the entire surface of the medium 5, or a coating film may be formed on a portion of the medium 5 to which the foil body 11 is bonded, and is not particularly limited.

DESCRIPTION OF SYMBOLS 1 Adhesive material 5 Media 8 Ink layer 9, 30 Ink layer formation body 10 Deposition film 11 Foil body 12 Peeling film 20, 28 Inkjet head 21 Ultraviolet irradiation device 25 Heating member 29 Process ink layer 31 Box body 45 Solvent

Claims (16)

In the bonding method for bonding the adherend and the bonded body,
An ink layer forming step of forming an ink layer by landing an ultraviolet curable ink discharged from an inkjet head on one of the adherend and the bonded body and irradiating and curing the ultraviolet curable ink with ultraviolet rays. When,
A laminating step of laminating the adherend and the adhesive with the ink layer interposed therebetween;
An adhesion step comprising: heating the ink layer, causing the ink layer to function as an adhesive, and bonding the adherend and the adhesive.   The bonding method according to claim 1, wherein the ink layer is formed of the ultraviolet curable ink that is melted by heat after curing, and melts when heated to function as an adhesive. In the ink layer forming step, the ink layer is formed on the adherend,
3. The adhesion method according to claim 1, wherein in the laminating step, the adhesive body adhered to a release sheet is brought into contact with the ink layer. In the ink layer forming step, the ink layer is formed on the adhesive adhered to the release sheet,
The bonding method according to claim 1, wherein, in the stacking step, the ink layer formed on the bonded body is brought into contact with the bonded body.   5. The ink layer forming step includes performing overstrike to make the ultraviolet curable ink land on the same landing position a plurality of times with respect to a landing position where the ultraviolet curable ink lands. The adhesion method according to any one of the above.   6. The adhesion according to claim 5, wherein, in the ink layer forming step, when the overstrike is performed, an amount of the ultraviolet curable ink is reduced as compared with a case where the overstrike is not performed. Method.   7. The bonding method according to claim 5, wherein in the ink layer forming step, when the overstrike is performed, the amount of the ultraviolet curable ink is set to the same amount each time.   In the ink layer forming step, after the ultraviolet curable ink is landed, the ultraviolet curable ink is irradiated with ultraviolet rays to be semi-cured, and after the ink layer is formed, the ink layer is irradiated with ultraviolet rays to be completely cured. The bonding method according to any one of claims 1 to 7, wherein the bonding method is characterized in that:   The bonding method according to claim 1, wherein the ultraviolet curable ink has a glass transition temperature of 25 ° C. or higher and lower than a heating temperature in the bonding step. In the bonding method for bonding the adherend and the bonded body,
An ink layer forming step of forming an ink layer by landing an ultraviolet curable ink discharged from an inkjet head on one of the adherend and the bonded body and irradiating and curing the ultraviolet curable ink with ultraviolet rays. When,
A solvent application step of applying a solvent to the ink layer and causing the ink layer to function as an adhesive;
A laminating step of laminating the adherend and the adhesive with the ink layer interposed therebetween;
A bonding step of bonding the adherend and the bonded body together.   11. The ink layer according to claim 10, wherein the ink layer is formed by the ultraviolet curable ink having low solvent resistance after curing, and dissolves and functions as an adhesive when the solvent is applied. Bonding method.   The adhesion method according to claim 10 or 11, wherein the ultraviolet curable ink contains a thermoplastic resin.   An ultraviolet curable ink that functions as an adhesive by heating is ejected from an inkjet head and landed on a substrate, and an ultraviolet ray is irradiated to the ultraviolet curable ink to be cured, thereby forming an ink layer on the substrate. A method for producing an ink layer forming body.   An ultraviolet curable ink that functions as an adhesive by applying a solvent is ejected from an inkjet head to land on the substrate, and the ultraviolet curable ink is irradiated with ultraviolet rays to be cured, thereby forming an ink layer on the substrate. A method for producing an ink layer formed body.   An ink layer forming body, wherein an ink layer obtained by curing an ultraviolet curable ink that functions as an adhesive by heating is formed on a substrate.   An ink layer forming body, wherein an ink layer obtained by curing an ultraviolet curable ink that functions as an adhesive by applying a solvent is formed on a substrate.

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